diff --git a/packages/platform-webworker/src/web_workers/ui/renderer.ts b/packages/platform-webworker/src/web_workers/ui/renderer.ts
index eb318e3592..84332b5202 100644
--- a/packages/platform-webworker/src/web_workers/ui/renderer.ts
+++ b/packages/platform-webworker/src/web_workers/ui/renderer.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Injectable, RenderComponentType, Renderer, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2, RootRenderer} from '@angular/core';
+import {Injectable, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2} from '@angular/core';
 
 import {MessageBus} from '../shared/message_bus';
 import {EVENT_2_CHANNEL, RENDERER_2_CHANNEL} from '../shared/messaging_api';
diff --git a/packages/platform-webworker/src/web_workers/worker/renderer.ts b/packages/platform-webworker/src/web_workers/worker/renderer.ts
index a70c0eb4cf..7c65abc9e7 100644
--- a/packages/platform-webworker/src/web_workers/worker/renderer.ts
+++ b/packages/platform-webworker/src/web_workers/worker/renderer.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Injectable, RenderComponentType, Renderer, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2, RootRenderer, ViewEncapsulation} from '@angular/core';
+import {Injectable, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2} from '@angular/core';
 
 import {ClientMessageBroker, ClientMessageBrokerFactory, FnArg, UiArguments} from '../shared/client_message_broker';
 import {MessageBus} from '../shared/message_bus';